Finding the Fourth Proportional to 82,455.96, 123,614.68 and 57,422.10

Step by Step Solution

1. Step 1: Write the proportion equation
   82,455.96 : 123,614.68 = 57,422.10 : x
2. Step 2: Convert to fraction form
   82,455.96/123,614.68 = 57,422.10/x
3. Step 3: Cross multiply
   82,455.96x = 123,614.68 × 57,422.10
4. Step 4: Simplify right side
   82,455.96x = 7,098,214,516.43
5. Step 5: Solve for x
   x = 7,098,214,516.43/82,455.96
6. Step 6: Final answer
   x = 86,084.92